Method of recognizing the unauthorized use of an identification

Method of reducing the effect of narrowband jammers in radio...

Methods and apparatus for interfacing an encryption module...

Military communications system

Military radar - or radio communications transmission system

Multi-layer encryption system for the broadcast of encrypted...

Multiple access coding for radio communications

Multiple phase psk demodulator

Narrow band interference frequency excision method and means

Non-orthogonal mobile subscriber multiple access system

Nonlinear dynamic substitution devices and methods for block...

Notch filtering a spread spectrum signal using fourier...

Optical telephones for microwave communication

Partial encryption of assembled bitstreams

Pay per view entertainment system

Personal identification encryptor system with...

Phase controlled synchronization for direct sequence...

Power supply

Privacy communication method and apparatus using time base...

Privacy communication system employing time/frequency...